WorksheetsScientific Notation Quiz_Evaluation
Total questions: 10
Worksheet time: 5mins
Which of the following best describes scientific notation?
A way to write only small numbers.
A method to express very large or very small numbers using exponents.
A technique to round numbers to the nearest whole number.
A system used only in space research.
The distance from Earth to the Sun is 150,000,000 km. What is its scientific notation?
1.5 × 10⁶ km
15 × 10⁷ km
1.5 × 10⁸ km
150 × 10⁶ km
The diameter of a human hair is approximately 0.000075 meters. How is this written in scientific notation?
7.5 × 10⁴ m
7.5 × 10⁻⁵ m
0.75 × 10⁻⁴ m
7.5 × 10⁻³ m
If the speed of light is 300,000,000 m/s, how can it be written in scientific notation?
3 × 10⁸ m/s
30 × 10⁷ m/s
3 × 10⁶ m/s
3.0 × 10⁹ m/s
What happens to the exponent in scientific notation when expressing a small number (less than 1)?
It becomes positive.
It remains 0.
It becomes negative.
It turns into a fraction.
The distance between Earth and the Moon is approximately 384,400 km. How is this written in scientific notation?
3.844 × 10⁵ km
38.44 × 10⁴ km
3.844 × 10⁶ km
3844 × 10² km
The size of a dust particle is 0.00000031 m. Which of the following is the correct scientific notation?
3.1 × 10⁶ m
3.1 × 10⁻⁷ m
0.31 × 10⁻⁶ m
3.1 × 10⁸ m
Which of the following numbers is NOT in scientific notation?
2.5 × 10⁴
5.67 × 10⁻³
23 × 10⁶
9.8 × 10²
The distance between Villamor Airbase, Philippines, and The Hague, Netherlands, is approximately 10,600 km. What is its scientific notation?
1.06 × 10³ km
1.06 × 10⁴ km
10.6 × 10³ km
1.06 × 10⁵ km
Why do scientists use scientific notation when dealing with space measurements?
To confuse people who are not scientists.
To make numbers appear larger than they are.
To simplify writing and comparing very large or very small numbers.
To avoid using decimals.
